计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (34): 31-34.DOI: 10.3778/j.issn.1002-8331.2008.34.008

• 博士论坛 • 上一篇    下一篇

能量有效的无线传感器网络协同覆盖

刘丽萍1,李桂丹1,王 智2,孙雨耕1   

  1. 1.天津大学 电气与自动化工程学院,天津 300072
    2.浙江大学 工业控制国家重点实验室,杭州 310027
  • 收稿日期:2008-07-25 修回日期:2008-09-19 出版日期:2008-12-01 发布日期:2008-12-01
  • 通讯作者: 刘丽萍

Energy-efficient collaborative target coverage in wireless sensor networks

LIU Li-ping1,LI Gui-dan1,WANG Zhi2,SUN Yu-geng1   

  1. 1.School of Electrical Engineering & Automation,Tianjin University,Tianjin 300072,China
    2.National Laboratory of Industrial Control Technology,Zhejiang University,Hangzhou 310027,China
  • Received:2008-07-25 Revised:2008-09-19 Online:2008-12-01 Published:2008-12-01
  • Contact: LIU Li-ping

摘要: 在节点随机分布的无线传感器网络目标覆盖中,考虑到单个节点有时难以完成对目标的感知,利用节点的概率感知模型和漏检率的概念,提出了节点协同覆盖的思想,并建立了协同覆盖模型;详细分析并推导了协同覆盖感知概率、节点数目和节点参与协同覆盖的最低感知概率之间的关系;在协同覆盖模型的基础上,考虑节点能量消耗的因素,设计了优化网络使用寿命的协同覆盖算法ECTC;仿真结果表明,该算法在改善网络感知概率的同时,延长了网络的使用寿命。

Abstract: Single sensor node can not be competent for monitoring target in wireless sensor networks in some applications.Considering miss probability,collaborative coverage is presented using probabilistic sensing model.The relationship among collaborative coverage probability,the number of sensor nodes and the condition that sensor node attend collaborative coverage is analyzed in theory.Energy-efficient collaborative target coverage algorithm(ECTC) is proposed with sensor nodes schedule.The simulation results show ECTC prolongs the network lifetime while satisfying the coverage requirement.